From: The risk of type 2 oral polio vaccine use in post-cessation outbreak response
Quantity varied | Values |
---|---|
Final base reproductive rate of reverted VDPV2 (R 0f) | {1.2, 1.5, 2.0, 3.0} |
Initial reproductive rate of OPV2 as fraction of final R 0 (g) | {0.25, 0.5} |
Exponential timescale of R 0 reversion (λ) | {60 days, 150 days} |
No. of inactivated polio vaccine doses given to children born after OPV2 cessation (N IPV) | {0, 1} |
Distance dependence of migration rates (c) | {–1, –2} (1/d, 1/d 2) |
Population intestinal immunity in cohort of children born before OPV2 cessation | Induced by three OPV campaigns at 80% coverage and 50% take (moderate immunity) or three OPV campaigns at 100% coverage and 100% take (high immunity) |